I haven't been exposed to much, but the best system I've heard was 3 channel set-up using Dahlquist DQ-20s in 1990 or so. The guy had put together a comparator that took the information that was common to both channels and put that in a center channel. It wasn't a "surround sound" processor, either. Around that time I also heard some Acoustats that sent me down the path of ESLs, I'd say those were the most dramatic speakers I've heard with regard to the life-changing impact they had on me.
The best speakers I've ever heard are the Sequels I get to listen to every day! :)
The best speakers I've ever heard are the Sequels I get to listen to every day! :)